Nipple for nursing-bottles



(NoModeL) I v A. CLEMENT & W. E. WILKINSON.

. NIPPLE FOR NURSING BOTTLES. No. 605,161.- Patented June 7 1898.

wibmzweoi i 4 Snow flow UNITED STATES PATENT OFFICE.

ARCHIE CLEMENT AND WILLIAM E. WILKINSON, OF CHICAGO, ILLINOIS.

NIPPLE FOR NURSING-BOTTLES.

SPECIFICATION formingpart Of Letters Patent N0. 605,161, dated June '7,1898.. Application filed May 22, 1897- Serial No. 637,774. (No model.)

To all whom it may concern.-

Be it known that we, ARCHIE CLEMENT and WILLIAM E. WILKINSON, citizensofthe United States, residing-at Chicago, in the county of Cook and Stateof Illinois, have invented a new and useful Improvement in RubberNipples for Nursing-Bottles,of which the following is a specification.

The object of our invention is to provide a nipple that will notcollapse under compression and by which the flow of the milk is causedby the action of the infants gums upon the nipple, which forces out theair and causes it to fill with milk.

Ourdevice is illustrated in the accompanying drawings, in which Figure lis a longitudinal section of the nipple on line 1, Fig. 2. Fig. 2 is aview of the nipple as seen from the-end. Fig. 3 is a trans verse sectionon line 3, Fig. 1. Fig. 4 is a transverse section on line 4, Fig. l.

In the molding of our improved nipple we use substantially the same formas the ordinary nipple now in use; but we add three prominent beads orribs 60 a, as shown in the illustration Fig. 1, placed laterally alongon the interior of the nipple and integral therewith,equidistant fromeach other and extending from the neck at e, Fig. 1, to the mouth of thenipple at v '5, by which the convex surfaces of the ribs 0. a coming incontact by compression, as shown by the dotted line in Fig. 4, leaves atriangular passage laterally through the nipple for the passage of thefluid.

At the point e c the ribs or a are concaved or recessed, as shown inFig. 1 in the illustration, to create a chamber or cavity at that pointwhich is intended to represent the point of contact with the gums of theinfant. The action of the infants gums upon this part of the nipplecauses the cavity a c to fill and discharge its contents through theorifice b. It will be noted that no amount of pressure exerted by. theinfant at any part of the nipple can entirely close the passage or stopthe flow of the fluid. At the base-terminal of the nipple we place ormold thereon a flange or bead d on the inside to firmly grasp the neckof the nursing-bottle.

Having thus described our invention, what we claim as new, and desire tosecure by Letters'Patent, is-' A rubber nipple having a flange d at thebase, and three ribs placed on the interior walls, extending from theorifice to the neck of the nipple, each rib recessed at C,the point ofcontact with the gums of the infant, as and for the purpose specified. c

' ARCHIE CLEMENT. WILLIAM E. WILKINSON.

Witnesses: H. O. HUNSBERGER, JAMES POTTER.

